# Calculate coating and surface-treatment costs from the callout.
URL: https://arcnm.io/manufacturing/surface-treatment
Language: en

A coating is priced from what the drawing specifies: the process, the layer thickness, the colour and the standard. ARCNM extracts the callout as structured data. This works across 37 coating and finishing kinds. Examples are “Fe/Zn 12” per ISO 2081 and anodised 20 µm per ISO 7599. Others are RAL 7016 powder coat and hard chrome per ISO 6158. ARCNM prices the step as a subcontract line from the part's surface and the specified layer thickness. The line carries the coater's order minimum. Mechanical finishing is priced the same way: blasting, vibratory finishing, deburring and polishing.

## At a glance
- Inputs: PDF drawing callout (process, thickness, colour, standard); surface area from the STEP model
- Machine classes: priced as a subcontract line at your environment's coating rates, with the order minimum
- Standards applied: ISO 2081 / ISO 1461 / ISO 7599 / ISO 6158 designations · 37 coating and finishing kinds, each with its own ISO or DIN standard · DIN 8580
- DfM checks: specification and Cr(VI)-free flags carried from the drawing
- You get: one subcontract line per coating with its DIN 8580 code, placed after machining and heat treatment; the lot size at which the order minimum stops dominating

## Which surface treatments are covered?
Paint systems: wet, powder, KTL e-coat, PTFE and enamel. Anodising and hard anodising. Conversion layers: black oxide, chromate, phosphate and passivation. Zinc systems: electrolytic zinc, zinc-nickel, zinc flake, sherardising, mechanical plating and hot-dip galvanising. Nickel, electroless nickel, tin, silver, copper, gold and chrome plating. PVD, CVD, DLC, parylene and thermal spray. Shot peening, blasting, vibratory finishing, deburring, polishing, electropolishing and pickling. Each carries its ISO or DIN designation in English and German.

## What drives the coating price?
The part's surface comes first: a bigger part costs more to coat. Then the specified layer thickness, wherever a layer is built up. A 12 µm zinc callout costs more than an 8 µm one. Hard anodising has its own rate. Colour and specification come from the drawing. The order minimum amortises over the batch. Your own coater's prices replace ARCNM's rates per environment.

## What you get back
- One subcontract line per coating with area, thickness, rate and order minimum visible.
- The step on the routing after machining and heat treatment, with its DIN 8580 code for export.
- Cr(VI)-free and specification flags carried from the drawing.
- The lot-size break-even where the order minimum stops driving the unit cost.

## Coating families — what the callout usually says
| Family | Typical callout | Where it appears on the routing |
| --- | --- | --- |
| Electrolytic zinc | Fe/Zn 12 (ISO 2081), zinc-nickel, zinc flake | last, after any heat treatment |
| Hot-dip galvanising | per ISO 1461 | last, after any heat treatment |
| Anodising | 20 µm per ISO 7599, hard-anodic 50 µm | last; threads are usually masked |
| Paint and powder | RAL 7016 powder, KTL e-coat | last, with the colour from the drawing |
| Hard chrome, nickel, PVD | Cr per ISO 6158, chemical nickel, DLC | after the fits are ground |
| Mechanical finishing | blasting, vibratory finishing, deburring, polishing | before a coating |

## FAQ
**How much does anodising, zinc plating or galvanising cost per part?**
The part's surface area at the rate for the process and layer thickness on the drawing. The coater's order minimum comes on top, spread over the batch. ARCNM computes the surface from the CAD model. It reads the process from the drawing, so the answer is per part.

**Does ARCNM read the RAL colour and layer thickness?**
Yes. ARCNM reads the callout into a structured coating record. The record holds kind, thickness, colour with RAL code and specification reference. A thicker layer costs more.